1. Anon. 1987. Tilapia project for drought-hit area in Kenya. Fishing news international, September 1987: 25.
2. Awachie, J.B.E. & L. Hare. 1978. The fisheries of the Anambra, Ogun and Oshun river systems in southern Nigeria. pp. 171–184..In: R.L. Welcomme (ed.) Symposium on River and Floodplain Fisheries in Africa, Bujumbura, Burundi, 21–23 November 1977, Review and Experience papers, CIFA Tech. Pap. No. 5, FAO, Rome.
3. Balarin, J.D. 1979. Tilapia: a guide to their biology and culture in Africa. University of Sterling, Sterling. 174 pp.
4. Balon, E.K. 1975. Reproductive guilds of fishes: a proposal and definition. J. Fish. Res. Board Can. 32: 821–864.
5. Balon, E.K. 1981. Saltatory processes and altricial to precocial forms in the ontogeny of fishes. Amer. Zool. 21: 573–596.